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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Marketing Manager	Antonio Moreno	Germany	1 2 3 4 5
2	Owner	Elizabeth Lincoln	Brazil	1 2 3 4 5
3	Marketing Manager	Howard Snyder	Argentina	1 2 3 4 5
4	Sales Agent	Antonio Moreno	Italy	1 2 3 4 5
5	Accountant	Elizabeth Lincoln	France	1 2 3 4 5
6	Sales Consultant	Hanna Moos	Germany	1 2 3 4 5
7	Owner	Antonio Moreno	France	1 2 3 4 5
8	Sales Manager	Georg Pipps	Austria	1 2 3 4 5
9	Accounting Manager	Howard Snyder	Spain	1 2 3 4 5
10	Sales Consultant	Elizabeth Lincoln	Germany	1 2 3 4 5
11	Marketing Assistant	Pascale Cartrain	France	1 2 3 4 5
12	Sales Representative	Matti Karttunen	England	1 2 3 4 5
13	Owner	Hanna Moos	Germany	1 2 3 4 5
14	Sales Representative	Elizabeth Lincoln	USA	1 2 3 4 5
15	Accountant	Pascale Cartrain	England	1 2 3 4 5
16	Marketing Manager	Patricio Simpson	Brazil	1 2 3 4 5
17	Owner	Hanna Moos	Germany	1 2 3 4 5
18	Sales Representative	Paul Henriot	England	1 2 3 4 5
19	Sales Representative	Antonio Moreno	France	1 2 3 4 5
20	Sales Associate	Howard Snyder	Germany	1 2 3 4 5
21	Sales Associate	Hanna Moos	Italy	1 2 3 4 5
22	Owner	Hanna Moos	USA	1 2 3 4 5
23	Sales Consultant	Paul Henriot	France	1 2 3 4 5
24	Sales Manager	Hanna Moos	Brazil	1 2 3 4 5
25	Owner	Elizabeth Lincoln	England	1 2 3 4 5
26	Accounting Manager	Pascale Cartrain	Italy	1 2 3 4 5
27	Marketing Assistant	Elizabeth Lincoln	Germany	1 2 3 4 5
28	Owner	Paul Henriot	Spain	1 2 3 4 5
29	Marketing Assistant	Matti Karttunen	Brazil	1 2 3 4 5
30	Sales Agent	Jaime Yorres	Bulgaria	1 2 3 4 5
31	Sales Consultant	Hanna Moos	Spain	1 2 3 4 5
32	Sales Representative	Patricio Simpson	France	1 2 3 4 5
33	Sales Manager	Georg Pipps	France	1 2 3 4 5
34	Sales Manager	Patricio Simpson	Italy	1 2 3 4 5
35	Sales Consultant	Jaime Yorres	Italy	1 2 3 4 5
36	Marketing Assistant	Hanna Moos	Bulgaria	1 2 3 4 5
37	Accountant	Paul Henriot	Germany	1 2 3 4 5
38	Sales Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
39	Sales Manager	Pascale Cartrain	USA	1 2 3 4 5
40	Accountant	Pascale Cartrain	Austria	1 2 3 4 5
41	Sales Manager	Hanna Moos	Austria	1 2 3 4 5
42	Sales Associate	Elizabeth Lincoln	Spain	1 2 3 4 5
43	Sales Manager	Elizabeth Lincoln	Argentina	1 2 3 4 5
44	Sales Agent	Howard Snyder	Bulgaria	1 2 3 4 5
45	Sales Associate	Hanna Moos	Spain	1 2 3 4 5
46	Sales Agent	Pascale Cartrain	England	1 2 3 4 5
47	Marketing Assistant	Georg Pipps	Austria	1 2 3 4 5
48	Marketing Assistant	Elizabeth Lincoln	Austria	1 2 3 4 5
49	Accountant	Patricio Simpson	England	1 2 3 4 5
50	Sales Consultant	Matti Karttunen	Argentina	1 2 3 4 5
51	Marketing Manager	Paul Henriot	France	1 2 3 4 5
52	Sales Agent	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
53	Sales Manager	Georg Pipps	Argentina	1 2 3 4 5
54	Accountant	Howard Snyder	Argentina	1 2 3 4 5
55	Sales Associate	Howard Snyder	USA	1 2 3 4 5
56	Owner	Pascale Cartrain	France	1 2 3 4 5
57	Marketing Manager	Paul Henriot	England	1 2 3 4 5
58	Accountant	Howard Snyder	Bulgaria	1 2 3 4 5
59	Accounting Manager	Pascale Cartrain	Italy	1 2 3 4 5
60	Sales Consultant	Antonio Moreno	Germany	1 2 3 4 5
61	Sales Consultant	Georg Pipps	England	1 2 3 4 5
62	Accounting Manager	Howard Snyder	Italy	1 2 3 4 5
63	Marketing Manager	Patricio Simpson	Bulgaria	1 2 3 4 5
64	Accounting Manager	Howard Snyder	Brazil	1 2 3 4 5
65	Sales Manager	Pascale Cartrain	Brazil	1 2 3 4 5
66	Owner	Paul Henriot	Germany	1 2 3 4 5
67	Sales Associate	Matti Karttunen	Bulgaria	1 2 3 4 5
68	Owner	Antonio Moreno	Argentina	1 2 3 4 5
69	Marketing Assistant	Pascale Cartrain	Germany	1 2 3 4 5
70	Marketing Assistant	Antonio Moreno	France	1 2 3 4 5
71	Sales Representative	Matti Karttunen	France	1 2 3 4 5
72	Marketing Manager	Georg Pipps	USA	1 2 3 4 5
73	Sales Representative	Hanna Moos	Bulgaria	1 2 3 4 5
74	Sales Manager	Patricio Simpson	Germany	1 2 3 4 5
75	Owner	Paul Henriot	Italy	1 2 3 4 5
76	Marketing Assistant	Patricio Simpson	Brazil	1 2 3 4 5
77	Sales Manager	Paul Henriot	Bulgaria	1 2 3 4 5
78	Marketing Assistant	Paul Henriot	Germany	1 2 3 4 5
79	Accountant	Matti Karttunen	Germany	1 2 3 4 5
80	Marketing Manager	Georg Pipps	France	1 2 3 4 5
81	Sales Associate	Pascale Cartrain	Italy	1 2 3 4 5
82	Sales Associate	Paul Henriot	England	1 2 3 4 5
83	Sales Associate	Matti Karttunen	Germany	1 2 3 4 5
84	Marketing Assistant	Jaime Yorres	Bulgaria	1 2 3 4 5
85	Marketing Assistant	Paul Henriot	Italy	1 2 3 4 5
86	Accounting Manager	Matti Karttunen	Italy	1 2 3 4 5
87	Marketing Manager	Georg Pipps	Germany	1 2 3 4 5
88	Marketing Manager	Howard Snyder	Argentina	1 2 3 4 5
89	Sales Manager	Hanna Moos	Spain	1 2 3 4 5
90	Sales Agent	Patricio Simpson	Germany	1 2 3 4 5
91	Sales Representative	Paul Henriot	England	1 2 3 4 5
92	Owner	Paul Henriot	France	1 2 3 4 5
93	Accounting Manager	Patricio Simpson	France	1 2 3 4 5
94	Sales Manager	Patricio Simpson	Argentina	1 2 3 4 5
95	Sales Manager	Patricio Simpson	England	1 2 3 4 5
96	Owner	Hanna Moos	Spain	1 2 3 4 5
97	Sales Consultant	Georg Pipps	France	1 2 3 4 5
98	Marketing Manager	Antonio Moreno	Spain	1 2 3 4 5
99	Sales Manager	Hanna Moos	Bulgaria	1 2 3 4 5
100	Marketing Assistant	Hanna Moos	USA	1 2 3 4 5


...81 82 83 84 85 86 87 88 89 90 ... Item 84001 to 85000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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